Use this sturdy timer as a stopwatch or a countdown timer. Stopwatch mode times up to 1 hour with 1/100-second resolution and continues to time for 24 hours in 1-second increments. Stopwatch features include single-action timing, time-in/-out, cumulative/interval-split and elapsed time. Unique dial design provides countdown timing in 16 preprogrammed increments up to 60 minutes or user-programmed increments up to 1 hour. An alarm sounds for the final 3 seconds of the countdown and for 3 additional seconds at zero time. Batteries, lanyard and a certificate of calibration included.